Short, Short, LONG sentences.

In a move borrowed from musicians, writers will often craft a series of three sentences in rhythmic. . . “duh, duh, duh-duh-duh”

A three part rhythm

Welcome to the green house. Welcome to the hot house. Welcome to the land of warm, wet days.
Jane Yolen, Welcome to the Green House

He could not have a cat. He could not have a dog. He could not even paint his walls a different color.
Cynthia Rylant, An Angel of Solomon Singer

Some went to the cafeteria. Some went upstairs. But all went to the classrooms.
Ryan Graugerger-Burgess, A School Full of Zombies.

They weren’t smart. They weren’t popular. But they were all good to me.
Eliza Disbrow